OK! I just did what I should have done before I opened this topic. I searched Profile's product site.
It turns out that the correct name is "Aquatic Plant Soil". I found it in the "lawn & garden" section.
Apparently, it is inert, neutral, and will not break down or leach. It "stores and exchanges nutrients directly to aquatic plants".
Though it's obviously intended for outdoor ponds it sounds ideal for my application.
Any thoughts?
Bob |